33805 -- U.S. ZIP code Municipality (1990): LAKELAND, Florida All ZIPs for this municipality (1990): 33801 33803 33805 33809 Population (2000): 20426 Housing Units (2000): 8986 Land area (2000): 35.428007 sq. miles (91.758114 sq. km) Water area (2000): 0.189894 sq. miles (0.491823 sq. km) Total area (2000): 35.617901 sq. miles (92.249937 sq. km) Located within: Florida (FL) Location: 28.071564 N, 81.958020 W